Heat and Mass Transfer in a Wetted Thermal Insulation of hot Water Pipes Operating Under Flooding Conditions

V. Yu Polovnikov, E. V. Gubina

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We present the results of numerical simulation of the thermal regimes of hot water pipes under flooding conditions with account for evaporation and diffusion of steam in a wetted thermal insulation. The extents of heat losses by hot water pipes under these conditions have been revealed. The contributions of evaporation and steam diffusion effects to the total heat losses are shown. The necessity of taking into account the nonstationarity of transfer processes and of the values of volume fractions of moisture and steam in the structure of a wetted thermal insulation layer in modeling thermal regimes of hot water pipes under flooding conditions has been proven.

Original languageEnglish
Pages (from-to)1151-1158
Number of pages8
JournalJournal of Engineering Physics and Thermophysics
Volume87
Issue number5
DOIs
Publication statusPublished - 1 Jan 2014

Fingerprint

thermal insulation
Thermal insulation
steam
mass transfer
Steam
Mass transfer
heat transfer
Pipe
Heat transfer
Heat losses
Evaporation
evaporation
water
Water
heat
moisture
Enthalpy
Volume fraction
Moisture
Computer simulation

Keywords

  • flooding
  • heat losses
  • hot water pipe
  • hot water-supply systems
  • wetting of insulation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)

Cite this

Heat and Mass Transfer in a Wetted Thermal Insulation of hot Water Pipes Operating Under Flooding Conditions. / Polovnikov, V. Yu; Gubina, E. V.

In: Journal of Engineering Physics and Thermophysics, Vol. 87, No. 5, 01.01.2014, p. 1151-1158.

Research output: Contribution to journalArticle

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